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Added the ability to install external ROMs (eg, M9312 ROM images) into the IOPAGE

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This commit is contained in:
Jeff 2016-11-05 12:01:56 -07:00 • committed by Jeff Parsons
commit c67176eab0
25 changed files with 1143 additions and 346 deletions
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16
devices/pdp11/machine/1170/panel/debugger/README.md
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@ -10,11 +10,19 @@ machines:
{% include machine.html id="test1170" %}
Other interesting things to know about this machine:
* It includes an [M9312 ROM](/devices/pdp11/rom/M9312/) at address 165000. The exact ROM is [23-616F1](/devices/pdp11/rom/M9312/23-616F1.txt).
Toggle-Ins
----------
As DEC notes in the [PDP-11/70 Maintenance Service Guide](http://archive.pcjs.org/pubs/dec/pdp11/1170/PDP1170_Maintenance_Service_Guide_Apr88.pdf),
Chapter 4: "There are several useful toggle-ins that are probably not very well known." Excerpts are provided below.
Chapter 4: "There are several useful toggle-ins that are probably not very well known." Excerpts are provided below. If you're
not sure how "toggle in" code using a Front Panel, check out [Front Panel Basics](/devices/pdp11/machine/1170/panel/#front-panel-basics).
However, since the above machine also includes the PDPjs Debugger, you'll find that it's much easier to use the Debugger commands
described below to load and execute these "toggle-ins".
### Memory Management
@ -186,7 +194,7 @@ If you also want to see all the hardware register activity, use the Debugger's "
17772262 021311 CMP (R3),(R1) ; Top of Memory?
17772264 003402 BLE 2$
17772266 005000 CLR R0 ; Start at Virtual Address 0
17772270 000766 BR 1$ ; [NOTE: DEC's guide incorrecly lists this opcode as 000776 --@jeffpar]
17772270 000766 BR 1$ ; [NOTE: DEC's guide incorrecly lists this opcode as 000776 --JP]
17772272 005312 2$: DEC (R2) ; Disable Relocation
17772274 000000 HLT
@ -310,8 +318,8 @@ As the **Maintenance Service Guide** goes on to say:
Before running the above code, you should turn Bus messages off (ie, "m bus off"); otherwise, the quantity of messages will
slow execution to a crawl.
If you want to set an execution breakpoint in the above code, make sure you use the appropriate virtual (16-bit) address,
not one of the physical (22-bit) addresses shown above. For example, to break on this instruction:
If you want to set an execution breakpoint in the above code, make sure you use the appropriate virtual (16-bit) address.
For example, to break on this instruction:
17772256 062711 ADD #200,(R1) ; Step Page

1
devices/pdp11/machine/1170/panel/debugger/machine.xml
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@ -5,6 +5,7 @@
<computer id="computer" busWidth="22"/>
<cpu id="cpu" model="1170" cycles="6666667"/>
<ram id="ram" addr="0x00000" size="0x3E000" file="/apps/pdp11/boot/monitor/PDPJSMON.json"/>
<rom id="m9312" addr="0xEA00" size="0x200" file="/devices/pdp11/rom/M9312/23-616F1.json"/>
<device id="default" type="default"/>
<serial id="dl11" adapter="0" binding="print" upperCase="true"/>
<panel ref="/devices/pdp11/panel/1170/debugger/front.xml"/>